Hardening furnace for resin grinding wheel production

Abstract

The utility model relates to the field of resin grinding wheel production equipment, in particular to a hardening furnace for resin grinding wheel production, which comprises a heat preservation box body, a partition plate arranged inside the heat preservation box body, a heat source box arranged on the rear side of the partition plate, a split furnace door hinged to the front end of the heat preservation box body, a hot air pipe arranged on the heat source box and extending to the front of the partition plate, and an annular pipe connected with the hot air pipe. The annular pipe is vertically provided with a plurality of air outlet pipes, the side faces of the air outlet pipes are provided with a plurality of air outlet holes facing the inner side of the heat preservation box body, a lifting frame is arranged in the heat preservation box body, two parallel sliding rails are arranged on the lifting frame, a containing frame is arranged on the sliding rails and comprises a vertical pipe with an opening in the upper end, and a plurality of bearing plates are horizontally arranged on the side faces of the vertical pipe. A plurality of air inlets are formed in the side face of the vertical pipe, an exhaust pipe penetrating through the heat preservation box is arranged at the upper end of the heat preservation box, and an exhaust fan is arranged on the exhaust pipe. Hot air horizontally moves in the heat preservation box body, so that the resin grinding wheel is uniformly heated, and the curing effect is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to resin grinding wheel equipment field especially relates to a resin grinding wheel production is with hardening furnace. BACKGROUND

[0002] Resin grinding wheel is a kind of common grinding wheel category, resin grinding wheel needs curing box to carry out heating solidification to resin grinding wheel in production process, heating solidification is the key procedure that the stable structure is formed by the crosslinking reaction of resin binder by accurately controlling temperature, pressure and the like, the whole heating solidification process includes preheating stage (60-80 DEG C), temperature rising stage (80-180 DEG C), in the preheating stage to avoid the stress mutation inside grinding wheel with slow temperature rising.This stage is mainly discharged free water and low molecular volatile substance in resin, temperature rising stage is used for the solidification process of resin grinding wheel, in the heating process of resin grinding wheel, the uniformity of heating is one of important beam standards of solidification quality, the existing curing box has the problem of uneven heating, therefore, it is particularly necessary to develop a resin grinding wheel production with hardening furnace that resin grinding wheel is heated uniformly and has good solidification effect. SUMMARY

[0003] The utility model discloses a resin grinding wheel production with hardening furnace, has resin grinding wheel heating uniformity, the advantage that solidification effect is good.

[0004] The technical scheme adopted is as follows:

[0005] A kind of hardening furnace for resin grinding wheel production, including heat preservation box, heat preservation box is provided with baffle in the inside, the rear side of baffle is heat source box, heat preservation box front end is hinged with opposite furnace door, multiple electric heating tubes are provided in heat source box, heat source box is provided with the air inlet pipe extending to the outside of heat preservation box, adjustable valve is set on air inlet pipe, heat source box is provided with the hot air pipe extending to the front of baffle, hot air pipe is connected with annular pipe, annular pipe is vertically provided with multiple lower end closed air outlet pipes, the side of air outlet pipe is provided with multiple air outlet holes towards the inside of heat preservation box, lifting frame is provided in heat preservation box, two parallelly arranged slide rails are provided on lifting frame, and placing rack is provided on slide rail, and placing rack includes the vertical pipe with upper end opening, multiple supporting plates are horizontally provided on the side of vertical pipe, multiple air inlets are formed on the side of vertical pipe, and exhaust pipe is provided on the upper end of heat preservation box and penetrates heat preservation box, and exhaust fan is provided on exhaust pipe.

[0006] Preferably, the lifting frame includes a frame, two support frames are hinged to the lower end of the frame, the two support frames are parallel to each other, a horizontal shaft is provided at the lower end of each support frame, and the lower end of the horizontal shaft is rotatably connected to the lower end of the heat preservation box. One of the horizontal shafts is coaxially connected to a transmission shaft, and the transmission shaft extends to the outside of the heat preservation box and is connected to a rotating mechanism.

[0007] Preferably, the front end of the heat preservation box is provided with a track having a height lower than the slide rail.

[0008] Preferably, the lower end of the exhaust pipe is connected with a conical guide pipe.

[0009] Preferably, the electric heating pipes are horizontally extended and are arranged in intervals from top to bottom.

[0010] Preferably, the heat preservation box body is provided with a temperature sensor.

[0011] Compared with the prior art, the beneficial effects are that:

[0012] The resin grinding wheel to be heated and solidified is placed on the supporting plate of the placing rack, the placing rack is placed on the lifting frame and pushed to the innermost side, the lifting frame is lifted to insert the vertical pipe into the exhaust pipe, during the heating process, the air enters the heat source box from the air inlet pipe by starting the exhaust fan, enters the annular pipe after being heated by the heat source box, the hot air is horizontally discharged from each air outlet hole, the hot air moves horizontally to blow to the resin grinding wheel, then the hot air enters the air inlet and is discharged from the exhaust pipe along the vertical pipe, the hot air moves horizontally in the heat preservation box body, so that the resin grinding wheel is uniformly heated and has good solidification effect. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 is an internal perspective structure schematic view of the resin grinding wheel production hardening furnace,

[0014] Fig. 2 is an internal front view structure schematic view of the resin grinding wheel production hardening furnace,

[0015] In the figure: 1, heat preservation box body; 2, opposite opening furnace door; 3, baffle; 4, electric heating pipe; 5, air inlet pipe; 6, opening adjustable valve; 7, hot air pipe; 8, temperature sensor; 9, annular pipe; 10, air outlet pipe; 11, air outlet hole; 12, frame; 13, support frame; 14, transmission shaft; 15, rotating mechanism; 16, sliding rail; 17, placing rack; 18, vertical pipe; 19, supporting plate; 20, pulley; 21, track; 22, exhaust pipe; 23, exhaust fan. DETAILED DESCRIPTION

[0016] The utility model will need to place the resin grinding wheel that heats and solidifies on the supporting plate of the placing rack, place the placing rack on the lifting frame and push to the innermost side, the lifting frame is lifted to insert the vertical pipe into the exhaust pipe, during the heating process, the air enters the heat source box from the air inlet pipe by starting the exhaust fan, enters the annular pipe after being heated by the heat source box, the hot air is horizontally discharged from each air outlet hole, the hot air moves horizontally to blow to the resin grinding wheel, then the hot air enters the air inlet and is discharged from the exhaust pipe along the vertical pipe, the hot air moves horizontally in the heat preservation box body, so that the resin grinding wheel is uniformly heated and has good solidification effect. Figs. 1-2

[0017] ​The embodiment 1 is a hardening furnace for resin grinding wheel production, which comprises a heat preservation box body 1, and the front end of the heat preservation box body 1 is hinged with a pair of opposite furnace doors 2 which are made of heat preservation material; the heat preservation box body 1 reduces heat loss inside the heat preservation box body 1 when the opposite furnace doors 2 are closed; a partition plate 3 is vertically arranged in the heat preservation box body 1, and the partition plate 3 divides the heat preservation box body 1 into two parts; the rear side of the partition plate 3 is a heat source box, and the front of the partition plate 3 is a curing chamber; the partition plate 3 is made of heat insulation material, and the heat source box reduces heat conduction from the heat source box to the curing chamber.

[0018] A plurality of electric heating pipes 4 are arranged in the heat source box, and the electric heating pipes 4 are prior art which will not be repeated here; the heat source box is provided with an air inlet pipe 5 which extends to the outside of the heat preservation box body 1; the air inlet pipe 5 is arranged at the lower part of the heat source box; an opening adjustable valve 6 is arranged on the air inlet pipe 5; the opening adjustable valve 6 can adjust the air inlet amount of the heat source box by controlling the opening; the heat source box is provided with a hot air pipe 7 which extends to the front of the partition plate 3; the hot air pipe 7 is arranged at the upper end of the partition plate 3; the gas entering the heat source box from the air inlet pipe 5 is heated by the electric heating pipes 4 and then is delivered to the curing chamber from the hot air pipe 7.

[0019] The hot air box is connected with a ring pipe 9, and a plurality of air outlet pipes 10 are vertically arranged in the ring pipe; the front end of the curing chamber is not provided with the air outlet pipe 10 to avoid the air outlet pipe 10 blocking the opposite furnace doors 2; the lower end of the air outlet pipe 10 is closed; a plurality of air outlet holes 11 are arranged on the side of the air outlet pipe 10 and face the inside of the heat preservation box body 1; the hot air entering the air outlet pipe 10 is horizontally blown out from each air outlet hole 11.

[0020] A lifting frame is arranged in the heat preservation box body 1; the lifting frame is arranged at the lower end inside the curing chamber; two parallel sliding rails 16 are arranged on the lifting frame; a placing frame 17 is arranged on the sliding rails 16; the lifting frame controls the lifting of the placing frame 17 arranged on the sliding rails 16; the placing frame 17 comprises a vertical pipe 18 with an open upper end; a plurality of supporting plates 19 are horizontally arranged on the side of the vertical pipe 18; a plurality of air inlets are arranged on the side of the vertical pipe 18; the lower end of the lowermost supporting plate 19 is provided with a pulley 20 corresponding to the sliding rail 16.

[0021] An exhaust pipe 22 is arranged at the upper end of the heat preservation box body 1 and penetrates the heat preservation box body 1; an exhaust fan 23 is arranged on the exhaust pipe 22; the lifting frame controls the lifting of the placing frame 17 to insert the vertical pipe 18 into the exhaust pipe 22; under the action of the exhaust fan 23, air enters the vertical pipe 18 from each air inlet and then enters the exhaust pipe 22 from the vertical pipe 18 to be exhausted; in the process of exhausting, the hot air flows horizontally in the heat preservation box body 1 to uniformly heat the resin grinding wheel placed on the supporting plates 19, and the curing effect is good.

[0022] The embodiment 2 is a hardening furnace for resin grinding wheel production, which comprises a heat preservation box body 1, and the front end of the heat preservation box body 1 is hinged with a pair of opposite furnace doors 2 which are made of heat preservation materials. When the opposite furnace doors 2 are closed, the heat loss inside the heat preservation box body 1 is reduced. A partition plate 3 is vertically arranged in the heat preservation box body 1, and the partition plate 3 divides the heat preservation box body 1 into two parts. The rear side of the partition plate 3 is a heat source box, and the front of the partition plate 3 is a curing chamber. The partition plate 3 is made of heat insulation materials, so that the heat of the heat source box is not conducted to the curing chamber.

[0023] A plurality of electric heating pipes 4 are arranged in the heat source box. The electric heating pipes 4 are prior art and will not be described here. The electric heating pipes 4 are horizontally extended and are arranged at intervals from top to bottom. The heating efficiency of hot air can be adjusted by adjusting the power and the number of the electric heating pipes 4. The heat source box is provided with an air inlet pipe 5 which extends to the outside of the heat preservation box body 1. The air inlet pipe 5 is arranged at the lower part of the heat source box. An opening adjustable valve 6 is arranged on the air inlet pipe 5. The opening of the opening adjustable valve 6 can be adjusted to adjust the air inlet amount of the heat source box. The heat source box is provided with a hot air pipe 7 which extends to the front of the partition plate 3. The hot air pipe 7 is arranged at the upper end of the partition plate 3. The gas entering the heat source box from the air inlet pipe 5 is heated by the electric heating pipes 4 and then is delivered to the curing chamber from the hot air pipe 7. A temperature sensor 8 is arranged in the heat preservation box body 1 and is used to monitor the temperature in the curing chamber.

[0024] The hot air box is connected with a ring pipe 9. A plurality of air outlet pipes 10 are vertically arranged in the ring pipe. The front end of the curing chamber is not provided with an air outlet pipe 10 to avoid the air outlet pipe 10 blocking the opposite furnace doors 2. The lower end of each air outlet pipe 10 is closed. A plurality of air outlet holes 11 are arranged on the side of each air outlet pipe 10 and face the inside of the heat preservation box body 1. The hot air entering the air outlet pipe 10 is horizontally blown out from each air outlet hole 11.

[0025] A lifting frame is arranged in the heat preservation box body 1. The lifting frame is arranged at the lower end inside the curing chamber. The lifting frame comprises a frame 12 and two support frames 13 which are hinged to the lower end of the frame 12 and are parallel to each other. A horizontal shaft is arranged at the lower end of each support frame 13 and is rotationally connected to the lower end inside the heat preservation box body 1. A transmission shaft 14 is coaxially connected to one of the horizontal shafts. The transmission shaft 14 extends to the outside of the heat preservation box body 1 and is connected with a rotating mechanism 15. The rotating mechanism 15 drives the horizontal shaft to rotate through the transmission shaft 14, so as to control the frame 12 to move longitudinally while moving transversely.

[0026] The lifting frame is provided with two parallel sliding rails 16, and the sliding rails 16 are provided with placing frames 17; the lifting frame controls the lifting of the placing frames 17 placed on the sliding rails 16; the placing frame 17 comprises a vertical pipe 18 with an upper end opening; a plurality of supporting plates 19 are horizontally arranged on the side of the vertical pipe 18; a plurality of air inlets are formed on the side of the vertical pipe 18; the lower end of the lowermost supporting plate 19 is provided with a pulley 20 corresponding to the sliding rail 16; the front end of the heat preservation box body 1 is provided with a track 21 with a height lower than the sliding rail 16; when the double-leaf furnace door 2 is opened, the frame 12 moves outward during the descending process until the sliding rail 16 is overlapped on the track 21, so as to facilitate the pushing in and out of the placing frame 17 into the heat preservation box body 1.

[0027] The heat preservation box body 1 is provided with an exhaust pipe 22 penetrating through the heat preservation box body 1; the exhaust pipe 22 is provided with an exhaust fan 23; the lifting frame controls the lifting of the placing frame 17 to insert the vertical pipe 18 into the exhaust pipe 22; the lower end of the exhaust pipe 22 is connected with a conical guide pipe; the conical guide pipe facilitates the insertion of the vertical pipe 18 into the exhaust pipe 22; under the action of the exhaust fan 23, air enters into the vertical pipe 18 from the air inlets, and then enters into the exhaust pipe from the vertical pipe 18; during the exhaust process, the hot air flows horizontally in the heat preservation box body 1, uniformly heats the resin grinding wheel placed on the supporting plates 19, and has a good solidification effect.

[0028] The specific working process is as follows: the opening adjustable valve 6 is opened; the exhaust fan 23 and the electric heating pipe 4 are started; the heat preservation box body 1 is preheated; the resin grinding wheel to be heated is placed on the supporting plate 19 of the placing plate; the placing frame 17 is placed on the track 21; according to the measurement data of the temperature sensor 8, when the temperature reaches the set temperature, the double-leaf furnace door 2 is opened; the rotating mechanism 15 drives the rotating shaft 14 to rotate, thereby driving the lifting frame to lower, so that the sliding rail 16 is overlapped with the track 21; the placing frame 17 is pushed into the heat preservation box body 1; the lifting frame is lifted to insert the vertical pipe 18 into the exhaust pipe 22; during the heating process, the exhaust fan 23 is started; the gas enters into the heat source box from the air inlet pipe 5; after being heated in the heat source box, the gas enters into the annular pipe 9; the hot air is horizontally discharged from the air outlets 11; the hot air moves horizontally to blow to the resin grinding wheel; then the hot air enters into the air inlets and is discharged from the exhaust pipe 22 along the vertical pipe 18; the hot air moves horizontally in the heat preservation box body 1, so that the resin grinding wheel is uniformly heated; after the solidification is completed, the double-leaf furnace door 2 is opened; the lifting frame is lowered to be overlapped on the track 21 to pull out the placing frame 17.

[0029] The above embodiment is only a preferred embodiment of the present application, and cannot be used to limit the scope of protection of the present application; any non-substantial change and replacement made by the person skilled in the art on the basis of the present application belongs to the scope of protection required by the present application.

Claims

1. A hardening furnace for producing resin grinding wheels, characterized in that: The utility model provides a heat preservation box, heat preservation box (1) inside is provided with the baffle (3), the rear side of baffle (3) is the heat source box, and the front end of heat preservation box (1) is hinged to the pair of open furnace door (2), and a plurality of electric heating tubes (4) are provided in the heat source box, and the heat source box is provided with the air inlet pipe (5) extending to the outside of heat preservation box (1), and the adjustable valve (6) is arranged on the air inlet pipe (5), and the heat source box is provided with the hot air pipe (7) extending to the front of baffle (3), and the hot air pipe (7) is connected with annular pipe (9), and a plurality of outtake pipes (10) with closed lower ends are vertically arranged on annular pipe (9), and a plurality of air outlet holes (11) are arranged on the side of outtake pipe (10) and are directed to the inside of heat preservation box (1), and the heat preservation box (1) is provided with a lifting frame, and the lifting frame is provided with two parallel sliding rails (16), and the sliding rail (16) is provided with a placing rack (17), and the placing rack (17) comprises a vertical pipe (18) with an open upper end, a plurality of supporting plates (19) are horizontally arranged on the side of vertical pipe (18), a plurality of air inlets are formed on the side of vertical pipe (18), and the heat preservation box (1) is provided with an exhaust pipe (22) penetrating through the heat preservation box (1), and the exhaust pipe (22) is provided with an exhaust fan (23).

2. The hardening furnace for producing a resinoid grinding wheel according to claim 1, characterized in that: The lifting frame comprises a frame (12), and the lower end of the frame (12) is hingedly connected with two support frames (13), the two support frames (13) are parallel to each other, the lower end of each support frame (13) is provided with a horizontal shaft, the lower end of the horizontal shaft is rotationally connected with the lower end of the heat preservation box (1), and the horizontal shaft of one of the support frames is coaxially connected with a transmission shaft (14), and the transmission shaft (14) extends to the outside of the heat preservation box (1) and is connected with a rotating mechanism (15).

3. The hardening furnace for producing a resinoid grinding wheel according to claim 2, characterized in that: The front end of the heat preservation box (1) is provided with a track (21) with a height lower than the sliding rail (16).

4. The hardening furnace for producing a resinoid grinding wheel according to claim 1, characterized in that: The lower end of the exhaust pipe (22) is connected with a conical guide pipe.

5. The hardening furnace for producing a resinoid grinding wheel according to claim 1, characterized in that: The electric heating tubes (4) are horizontally arranged and are spaced apart from each other from top to bottom.

6. The hardening furnace for producing a resinoid grinding wheel according to claim 1, characterized in that: The heat preservation box (1) is provided with a temperature sensor (8).

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